运行 nginx 反向代理时 Docker COPY 文件丢失

Question

我正在学习

docker

并且我正在尝试将

blazor wasm

应用程序发布到

docker

容器中。

这是我的

docker-compose.yml

：

version: '3.7'

services:
  reverseproxy:
    build:
      context: .
      dockerfile: nginx/nginx.Dockerfile
    ports:
      - "44395:44395"
    networks:
      testnet

  test.ui:
    build:
      context: .
      dockerfile: Web/Dockerfile
    depends_on:
      - reverseproxy
    environment:
      - ASPNETCORE_URLS=http://*:5005
      - ASPNETCORE_ENVIRONMENT=Development
    ports:
      - "5005:5005"
    networks:
      - testnet

networks:
  testnet: {}

nginx docker 文件：

FROM nginx

COPY nginx/nginx.local.conf /etc/nginx/nginx.conf

Blazor wasm Docker 文件：

FROM mcr.microsoft.com/dotnet/sdk:7.0-alpine AS publish
RUN apk add nodejs
RUN apk add npm
WORKDIR /src
COPY . .
WORKDIR "/src/Web"
RUN npm install
RUN dotnet publish "Web.csproj" -c Release -o /output

FROM nginx:alpine
WORKDIR /usr/share/nginx/html
COPY --from=publish /output/wwwroot .

到目前为止文件没有正确复制。

更新一：

Blazor wasm Docker 文件：

FROM mcr.microsoft.com/dotnet/sdk:7.0-alpine AS build-env
RUN apk add nodejs
RUN apk add npm
WORKDIR /app
COPY . ./                                         <--- Change here
WORKDIR "/app/Web"
RUN npm install
RUN dotnet publish -c Release -o output

FROM nginx:alpine
WORKDIR /usr/share/nginx/html
COPY --from=build-env /app/Web/output/wwwroot/ .  <--- Change here

现在当我单独运行这个docker文件时，文件夹

/app/Web/output/wwwroot/

中的内容被复制到

/usr/share/nginx/html

一切都可以正常编译和构建。但是当我从 docker compose 运行时，出现以下错误并且

reverse-proxy

仍然继续运行。

所以我决定进入 test.ui 容器，我看到了

No such file or directory

C:\Users\xxxx>docker exec -it 18aa171dae9d sh
/app/Web # cd ..
/app # cd ..
/ # cd usr
/usr # cd share
/usr/share # cd nginx
sh: cd: can't cd to nginx: No such file or directory
/usr/share #

当我在

reverseproxy

评论

docker-compose.yml

时，我可以看到文件被正确复制。但是在

reverseproxy

中启用

docker-compose.yml

，目录丢失了。我不确定是什么覆盖了我的 test.ui 容器的内容。

这里是构建日志：

8>#31 [testui:dev build-env 5/5] RUN dotnet publish -c Release -o output
8>#31 0.788 MSBuild version 17.5.0+6f08c67f3 for .NET
8>#31 2.253   Determining projects to restore...
8>#31 7.795   Restored /app/Shared/Shared.csproj (in 4.75 sec).
8>#31 14.82   Restored /app/Web/Web.csproj (in 11.8 sec).
8>#31 18.41   Shared -> /app/Shared/bin/Release/net7.0/Shared.dll
...
8>#31 35.82   Web -> /app/Web/bin/Release/net7.0/Web.dll
8>#31 35.82   Web (Blazor output) -> /app/Web/bin/Release/net7.0/wwwroot
8>#31 36.26   Optimizing assemblies for size may change the behavior of the app. Be sure to test after publishing. See: https://aka.ms/dotnet-illink
8>#31 36.26   Optimizing assemblies for size. This process might take a while.
8>#31 97.61   Compressing Blazor WebAssembly publish artifacts. This may take a while...
8>#31 133.3   Web -> /app/Web/app/Web/output/
8>#31 DONE 133.5s
8>#18 [testui:dev] exporting to image
8>#18 exporting layers

从构建日志中我可以看到 COPY 操作没有发生。发布后开始导出图像。

请在我错的地方帮助我。